CN114909976A

CN114909976A - Survey and drawing device for collecting thickness of underwater silt

Info

Publication number: CN114909976A
Application number: CN202210838335.5A
Authority: CN
Inventors: 王勇; 孙大路
Original assignee: Shandong Lantu Geographic Information Engineering Co ltd
Current assignee: Shandong Lantu Smart City Technology Co.,Ltd.
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-08-16
Anticipated expiration: 2042-07-18
Also published as: CN114909976B

Abstract

The invention discloses a surveying and mapping device for collecting the thickness of underwater silt, which belongs to the technical equipment field of surveying and mapping devices and comprises a sleeve, wherein the bottom of the sleeve is provided with a plurality of balance plates which are uniformly arranged along the circumferential direction of the sleeve, all the balance plates are provided with balance mechanisms for keeping the sleeve in a vertical state and fixing mechanisms for fixing the sleeve, each balance mechanism comprises a plurality of balance components, all the balance components are uniformly distributed at the tops of all the balance plates, the top wall in the sleeve is provided with a motor, and the output end of the motor is downward. According to the device, the lifting mechanism plays a role in collecting and placing the device, the device does not need to be manually placed on the water bottom for manual measurement, when the device enters water, the gravity ball enables the device to be in a vertical state with a downward gravity center, the device is prevented from falling in an inclined mode, after the gravity ball contacts the surface of sludge, the verticality adjustment and the measurement automation of the device are achieved through the balance mechanism, and the vertical angle is fixed through the fixing mechanism.

Description

Survey and drawing device for collecting thickness of underwater silt

Technical Field

The invention belongs to the technical field of surveying and mapping devices, and particularly relates to a surveying and mapping device for collecting the thickness of underwater silt.

Background

The sewage treatment station is intake and is contained more suspended solid, can subside to the bottom of the pool gradually in getting into the effluent water sump of each processing workshop section, because hydraulic power dwell time is shorter, it is very little to the effluent water sump operation influence in short term, nevertheless along with time lapse, the sediment that accumulates over the clock and month finally can form the silt layer that has certain degree of depth, the effective volume in pond has been reduced, the pond desilting usually need go on after the evacuation of pond water, bring very big influence to production, consequently, know pond silt deposit condition and decide the key whether desilting.

In the prior art, a rough estimation method is generally adopted, namely a sludge measuring and calculating rod is inserted into sludge, the depth of the sludge at the water bottom is approximately estimated by observing the distance of the sludge stained on the sludge measuring and calculating rod taken out of water, and the mode has larger error due to the fact that the measuring and calculating rod is difficult to ensure to vertically fall.

The Chinese patent publication No. CN111854570A discloses a surveying and mapping device for collecting the thickness of underwater sludge, which is mainly characterized in that a guide device with a contact disc at the bottom surface is sleeved outside a measuring and calculating rod, the contact disc is firstly contacted with the underwater sludge, and then the measuring and calculating rod is inserted into the guide device, so that the guide rod is ensured to be at a relatively vertical insertion angle, and the precision of sludge depth surveying and mapping is improved.

However, the above patents still have some disadvantages:

1. in the device, the telescopic guide sleeve is adjusted to a proper length, the mud contact component at the lower end of the telescopic guide sleeve is sunk to the surface of the mud, the positioning column is inserted into the mud to position the whole device, and the verticality is still grasped in a mode of manually inserting the telescopic guide sleeve into the mud, so that the vertical angle during surveying and mapping cannot be ensured;

2. the mud subassembly that touches in the device is used for making level of submarine silt upper surface to confirm the reference surface of silt degree of depth measurement, but because the soft or hard degree of silt around the device is different, can't make inside a plurality of extension holding pieces insert silt in step, if the straightness that hangs down of the first step of device can't obtain guaranteeing, only can lead to extending the angle of holding piece fixation error.

Disclosure of Invention

The invention aims to provide a surveying and mapping device for collecting the thickness of underwater sludge, and solves the problems that oil and impurities on the surface of a cable cannot be cleaned and cannot be positioned in the winding process.

In order to achieve the purpose, the invention adopts the following technical scheme:

the surveying and mapping device for collecting the thickness of underwater sludge comprises a sleeve, wherein a plurality of balance plates which are uniformly arranged along the circumferential direction of the sleeve are arranged at the bottom of the sleeve, a balance mechanism for keeping the sleeve in a vertical state and a fixing mechanism for fixing the sleeve are arranged on all the balance plates, the balance mechanism comprises a plurality of balance components, all the balance components are uniformly distributed at the tops of all the balance plates, a motor is arranged on the top wall of the inner wall of the sleeve, the output end of the motor is downward, an inner cylinder is rotationally arranged in the sleeve, a measuring rod and an electric multi-stage telescopic rod for driving the measuring rod to extend out are arranged in the inner cylinder in a sliding manner, the top of the inner cylinder is fixedly connected with the output end of the motor, the surveying and mapping device further comprises a lifting mechanism for lifting the sleeve and a gravity ball, the upper half part of the gravity ball is in a frustum shape, the bottom of the gravity ball is provided with a spherical surface, the gravity ball is internally provided with a through hole, the inner wall of the bottom end of the through hole is hinged with a baffle, the lifting mechanism is in transmission connection with the top of the sleeve, the gravity ball is arranged at the bottom of the sleeve, the through hole is communicated with the inside of the sleeve, and the through hole and the sleeve are coaxial.

Further, the balance assembly comprises a gravity adjusting plate and a balance ball, an inductor is arranged on one side of the inner wall of the gravity adjusting plate, an electric reel is arranged at the end of the gravity adjusting plate, the balance ball is arranged inside the gravity adjusting plate, and a fixing line is fixedly connected between the output end of the electric reel and the balance ball.

Further, the quantity of balanced subassembly is provided with four at least, and the contained angle between every two adjacent balanced subassemblies is 90 degrees to can every side of perception device and the angle of ground silt support.

Further, fixed establishment includes a balance section of thick bamboo, lifting unit and gear assembly, a balance section of thick bamboo sets up in the balance plate top, a balance section of thick bamboo and the quantity phase-match of balance plate, lifting unit sets up in a balance section of thick bamboo and extends in the balance plate, lifting unit passes through the gear assembly transmission with the inner tube and is connected, makes the sleeve stabilize behind perpendicular angle at balance establishment, can influence telescopic angle when avoiding rivers great to start fixed establishment and fix perpendicular angle.

Further, the lifting assembly comprises a fixed cylinder, a rotary cylinder and a fixed screw rod, the fixed cylinder is fixedly arranged inside the balance cylinder, the rotary cylinder is arranged at the bottom end of the fixed cylinder, the rotary cylinder is rotatably connected with the fixed cylinder through a bearing, the fixed screw rod sequentially penetrates through the fixed cylinder and extends out of the rotary cylinder, the rotary cylinder is in threaded connection with the fixed screw rod, limiting grooves which are arranged in a sliding mode with the fixed screw rod are formed in two sides of the inner wall of the fixed cylinder, a conical plug is arranged at the bottom of the fixed screw rod, and the integral device is fixed with sludge through the lifting assembly.

Furthermore, the gear assembly comprises a first gear, a second gear and a third gear, the first gear, the second gear and the third gear are meshed and connected, the first gear is fixedly connected with the inner cylinder, the second gear is rotatably connected inside the balance plate, the third gear is fixedly connected with the rotary drum, and the lifting assembly is driven to move through the gear assembly.

Further, it includes winding drum, rolling axle and connecting wire to carry the mechanism of hanging, the rolling axle rotates and sets up inside the winding drum, winding drum outer wall one side is provided with the handle, handle and rolling axle fixed connection, the connecting wire sets up between rolling axle and sleeve top, set up the hole of installation connecting wire on the winding drum, put into aquatic through carrying all devices that the mechanism of hanging on with sleeve and sleeve, carry the mechanism of hanging and play the effect of receiving and putting, need not manually to place the device in the bottom and carry out manual measurement, realize the device straightness adjustment of hanging down and measuring automation.

Further, the upper half part of the measuring rod is columnar, the lower half part of the measuring rod is conical, a resistance sensor is arranged in the lower half part of the measuring rod, and the resistance sensor can provide signals for the electric multi-stage telescopic rod to stop the descending of the measuring rod after receiving resistance.

The invention has the advantages that:

1. according to the device, the whole device is placed into water through the lifting mechanism, the lifting mechanism plays a role in collecting and placing, the device does not need to be placed at the bottom manually for manual measurement, when the device enters the water, the gravity ball enables the device to be in a vertical state with the gravity center downward, the device is prevented from falling obliquely, and after the gravity ball contacts the surface of sludge, the verticality adjustment and the measurement automation of the device are realized through the balance mechanism.

2. The fixing mechanism is used for fixing the vertical angle, and the sleeve is fixed at the vertical angle, so that the sleeve angle is prevented from being influenced by water flow greatly.

3. According to the invention, the bottom of the gravity ball is designed into the cambered surface, and after the balance mechanism is started, the gravity ball is driven by the gravity center to rotate along the cambered surface, so that the sleeve and the ground are kept at certain degrees.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention and to enable other features, objects and advantages of the invention to be more fully apparent. The drawings and their description illustrate the invention by way of example and are not intended to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the surveying and mapping device for collecting the thickness of underwater sludge according to the present invention;

FIG. 2 is an enlarged schematic view of the sleeve and gravity ball of the present invention;

FIG. 3 is a schematic view of the whole cut-away structure of the surveying device for collecting underwater sludge thickness of the present invention;

FIG. 4 is a schematic view of the overall connection structure of the inner cylinder of the present invention;

FIG. 5 is a schematic view of the balance assembly of the present invention in an initial state;

FIG. 6 is a schematic diagram of the tilt configuration of the counterbalance assembly of the present invention;

FIG. 7 is a structural schematic diagram of the balance assembly of the present invention in a post-operative state;

FIG. 8 is an enlarged view of the structure of FIG. 3 at B according to the present invention;

FIG. 9 is a schematic cross-sectional view of the lift assembly of the present invention;

fig. 10 is an enlarged structure diagram of the connection between the lifting mechanism and the sleeve.

Description of reference numerals:

1. a sleeve; 2. a balance plate; 3. a balancing mechanism; 31. a balancing component; 311. a gravity adjusting plate; 312. a balance ball; 313. an inductor; 314. an electric reel; 315. fixing the wire; 4. a fixing mechanism; 41. a balance cylinder; 42. a lifting assembly; 421. a fixed cylinder; 422. a rotating drum; 423. fixing the screw rod; 424. a limiting groove; 425. a tapered plug; 43. a gear assembly; 431. a first gear; 432. a second gear; 433. a third gear; 5. a motor; 6. an inner barrel; 7. a measuring rod; 8. an electric multi-stage telescopic rod; 9. a lifting mechanism; 91. winding the roll; 92. a winding shaft; 93. a connecting wire; 94. a handle; 95. a hole; 10. a gravity ball; 101. a through hole; 102. a baffle plate; 11. a resistance sensor.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1-10, the surveying and mapping device for collecting the thickness of underwater sludge according to the embodiment of the present invention includes a sleeve 1, a plurality of balance plates 2 are uniformly arranged at the bottom of the sleeve 1 along the circumferential direction of the sleeve, at least four balance plates 2 are provided, which are mainly used for ensuring the balance effect of the whole device in water and enlarging the reference plane, all balance plates 2 are provided with a balance mechanism 3 for keeping the sleeve 1 in a vertical state and a fixing mechanism 4 for fixing the sleeve 1, the balance mechanism 3 is used for maintaining the verticality of the sleeve 1 in water by the balance mechanism 3 after the device enters water, so as to improve the accuracy of measuring depth, the balance mechanism 3 includes a plurality of balance assemblies 31, all balance assemblies 31 are uniformly distributed at the tops of all balance plates 2, the top wall in the sleeve 1 is provided with a motor 5, and the output end of the motor 5 faces downward, an inner cylinder 6 is rotationally arranged in the sleeve 1, a measuring rod 7 and an electric multi-stage telescopic rod 8 for driving the measuring rod 7 to extend out are arranged in the inner cylinder 6 in a sliding mode, the top of the inner cylinder 6 is fixedly connected with the output end of a motor 5, the motor 5 is electrified before use, the inner cylinder 6 is driven to rotate by starting the motor 5, so that the inner cylinder 6 drives a fixing mechanism 4 to operate, and further the vertical angle is positioned, so that the measuring angle is determined, the device also comprises a lifting mechanism 9 and a gravity ball 10 for lifting the sleeve 1, the sleeve 1 and all devices on the sleeve 1 are placed into water through the lifting mechanism 9, the lifting mechanism 9 plays a role in collecting and placing, the devices do not need to be placed under the water manually for manual measurement, the adjustment of the verticality of the devices and the automation of the measurement are realized, the upper half part of the gravity ball 10 is in a frustum shape, the bottom of the gravity ball 10 is provided with a spherical surface, and the gravity ball 10 enables the gravity of the whole device to be reduced to be lowest, when the device enters water, the gravity ball 10 can make the device in a vertical state with downward gravity center to avoid inclined falling, when the bottom of the gravity ball 10 contacts a sludge surface, the two conditions are divided into two conditions, the first condition is that the sludge surface tends to be flat, the gravity center of the gravity ball 10 is on the sludge surface, the gravity is lowest at the moment, the sleeve 1 can be gradually stable, the second condition is that when the sludge surface is in an inclined state, the gravity ball 10 can drive the sleeve 1 to be in an inclined state with the water surface and be in a vertical state with the inclined sludge surface, the balance assembly 31 in the balance mechanism 3 can be driven to drive the gravity ball 10 to be in a vertical state with the water surface, a through hole 101 is arranged inside the gravity ball 10, a baffle plate 102 is hinged on the inner wall at the bottom end of the through hole 101, the lifting mechanism 9 is in transmission connection with the top of the sleeve 1, the gravity ball 10 is arranged at the bottom of the sleeve 1, the through hole 101 is communicated with the inside of the sleeve 1, and the through hole 101 is coaxial with the sleeve 1, the coaxial line is intended to pass the measuring rod 7 vertically through and includes a remote control which is in signal connection with all the balancing assemblies 31.

When the device enters water and is in a second condition, the gravity ball 10 and the water surface are driven to be in a vertical state through the balance assembly 31, the balance assembly 31 comprises a gravity adjusting plate 311 and balance balls 312, one side of the inner wall of the gravity adjusting plate 311 is provided with an inductor 313, the end parts of all the gravity adjusting plates 311 are provided with electric reels 314, the balance balls 312 are arranged in the gravity adjusting plate 311, a fixing line 315 is fixedly connected between the output end of the electric reels 314 and the balance balls 312, in an initial state, the two symmetrically arranged balance balls 312 and the inner cylinder 6 are coaxial, when the surface of the silt is in an inclined state, the gravity ball 10 drives the sleeve 1 and the water surface to be in an inclined state, the two balance balls 312 are separated from the axial line and are in a vertical state with the inclined silt surface, the water surface is used as a reference object, the whole device is in an inclined state at the moment, although the shell of the device is in an inclined state according to the influence of gravity, but the gravity of balance ball 312 is downward all the time, thereby make balance ball 312 contradict with inductor 313 through fixed line 315, after inductor 313 received the signal, the signal feedback is to remote controller, the staff starts this balance assembly 31 inside electronic spool 314 according to the signal and rolls, thereby make balance ball 312 be close to the coaxial line, make the focus shift up, and meanwhile, start and this balance assembly 31 and be the inside electronic spool 314 of another balance assembly 31 of symmetry setting and unreel, make corresponding balance ball 312 keep away from the coaxial line, thereby make the focus move down to bottommost gradually, further make the whole focus of device adjust, make whole device personally submit vertical condition with the level gradually.

Preferably, the number of the balancing assemblies 31 is at least four, and the included angle between every two adjacent balancing assemblies 31 is 90 degrees, and since it is uncertain which side the sludge inclines, the design of the plurality of balancing assemblies 31 can sense different inclination directions of the device.

Preferably, the sensor 313 may be provided with a buzzer or a signal lamp, both of which may remind the operator of the need to adjust the center of gravity.

Make sleeve 1 stabilize behind vertical angle at balance mechanism 3, can influence sleeve 1's angle when avoiding rivers great, thereby start fixed establishment 4 and fix vertical angle, fixed establishment 4 includes balance cylinder 41, lifting unit 42 and gear assembly 43, balance cylinder 41 sets up in 2 tops of balance plate, balance cylinder 41 and balance plate 2's quantity phase-match, lifting unit 42 sets up in balance cylinder 41 and extends in balance plate 2, lifting unit 42 passes through gear assembly 43 transmission with inner tube 6 and is connected, to the circular telegram of motor 5 before using, drive inner tube 6 through starter motor 5 and rotate, thereby make inner tube 6 drive gear assembly 43 move, make gear assembly 43 drive lifting unit 42 function, further fix a position the angle after the perpendicular.

The integral device is fixed with the sludge through the lifting component 42, the lifting component 42 comprises a fixed cylinder 421, a revolving drum 422 and a fixed screw 423, the fixed cylinder 421 is fixedly arranged inside the balance cylinder 41, the revolving drum 422 is arranged at the bottom end of the fixed cylinder 421, the revolving drum 422 is rotatably connected with the fixed cylinder 421 through a bearing, the fixed screw 423 sequentially penetrates through the fixed cylinder 421 and extends out of the revolving drum 422, the revolving drum 422 and the fixed screw 423 are in threaded connection, both sides of the inner wall of the fixed cylinder 421 are provided with limit grooves 424 which are arranged in a sliding manner with the fixed screw 423, the bottom of the fixed screw 423 is provided with a conical plug 425, the lifting component 42 is driven to move through the gear component 43, the gear component 43 comprises a first gear 431, a second gear 432 and a third gear 433, the first gear 431, the second gear 432 and the third gear 433 are in meshed connection, the first gear 431 is fixedly connected with the inner cylinder 6, the second gear 432 is rotatably connected inside the balance plate 2, the third gear 433 is fixedly connected with the rotary drum 422, specifically, the inner drum 6 is driven to rotate by the starting motor 5, so that the inner cylinder 6 drives the first gear 431 to rotate, the first gear 431 continuously drives the second gear 432 and the third gear 433 to rotate, the third gear 433 drives the revolving drum 422 to rotate, so that the revolving drum 422 drives the fixed screw 423 to rotate, since the stopper groove 424 of the inner wall of the fixed cylinder 421 stops the fixing screw 423, therefore, when the rotary drum 422 drives the fixing screw 423 to rotate, the fixing screw 423 descends along the path of the limiting groove 424, the conical plug 425 facilitates the fixing screw 423 to be better inserted into the sludge, and the fixing screw 423 is vertically downwards inserted into the sludge, so that the whole device is fixed deeper, the positioning effect is better, after the fixation is finished, the electric multi-stage telescopic rod 8 is started to drive the measuring rod 7 to descend, and the measuring rod 7 with the bottom also designed in a conical shape can be inserted into the sludge more conveniently during measurement.

Put into aquatic through lifting and hanging mechanism 9 with sleeve 1 and all devices on the sleeve 1, lifting and hanging mechanism 9 plays the effect of receiving and putting, need not manually place the device in the bottom and carry out manual measurement, realize device straightness adjustment and the measured automation of hanging down, lifting and hanging mechanism 9 includes winding reel 91, winding shaft 92 and connecting wire 93, winding shaft 92 rotates and sets up inside winding reel 91, winding reel 91 outer wall one side is provided with handle 94, handle 94 and winding shaft 92 fixed connection, connecting wire 93 sets up between winding shaft 92 and sleeve 1 top, set up the hole 95 of installation connecting wire 93 on the winding reel 91, put into aquatic with the integrated device, connecting wire 93 can unreel according to the depth of water is automatic, be convenient for collect after the use.

The upper half of measuring stick 7 is the column, and measuring stick 7 lower half is the toper, is provided with resistance inductor 11 in the 7 lower halves of measuring stick, and measuring stick 7 can be along with the degree of depth of silt constantly descends, when descend to the bottommost back, can provide the decline that signal stopped measuring stick 7 for electronic multi-stage telescopic link 8 after resistance inductor 11 receives the resistance.

Preferably, after the balance assembly 31 makes the whole device keep vertical to the water surface, the fixing mechanism 4 is started to perform angle positioning on the vertical device, and after the device is taken out of the water surface after measurement is completed, the internal parts of the device are sequentially restored to the initial state.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modifications, equivalents, improvements and the like are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a survey and drawing device of gathering silt thickness under water, includes sleeve (1), its characterized in that: the sleeve is characterized in that a plurality of balance plates (2) are uniformly arranged at the bottom of the sleeve (1) along the circumferential direction of the sleeve, a balance mechanism (3) used for keeping a sleeve in a vertical state and a fixing mechanism (4) used for fixing the sleeve are arranged on all the balance plates (2), the balance mechanism (3) comprises a plurality of balance components (31), all the balance components (31) are uniformly distributed at the tops of all the balance plates (2), a motor (5) is arranged on the inner top wall of the sleeve (1), the output end of the motor (5) faces downwards, an inner cylinder (6) is rotationally arranged in the sleeve (1), a measuring rod (7) and an electric multi-stage telescopic rod (8) used for driving the measuring rod (7) to extend out are arranged in the inner cylinder (6) in a sliding mode, the top of the inner cylinder (6) is fixedly connected with the output end of the motor (5), and the sleeve further comprises a lifting mechanism (9) and a gravity ball (10) used for lifting the sleeve (1), the gravity ball (10) first half is the frustum form, gravity ball (10) bottom is equipped with the sphere, gravity ball (10) inside is equipped with through-hole (101), it has baffle (102) to articulate on through-hole (101) bottom inner wall, it is connected with sleeve (1) top transmission to carry and hang mechanism (9), gravity ball (10) set up in sleeve (1) bottom, through-hole (101) and sleeve (1) inside intercommunication and through-hole (101) and sleeve (1) coaxial line still include remote control unit, remote control unit and all balance assembly (31) signal connection.

2. The apparatus for surveying and mapping underwater sludge thickness as claimed in claim 1, wherein: balance assembly (31) includes gravity regulating plate (311) and balancing ball (312), gravity regulating plate (311) inner wall one side is provided with inductor (313), and all gravity regulating plate (311) end departments are provided with electronic spool (314), balancing ball (312) set up inside gravity regulating plate (311), fixedly connected with fixed line (315) between electronic spool (314) output and balancing ball (312).

3. The apparatus for surveying and mapping underwater sludge thickness as claimed in claim 2, wherein: the number of the balancing assemblies (31) is at least four.

4. The apparatus for surveying and mapping underwater sludge thickness as claimed in claim 1, wherein: fixed establishment (4) include balance cylinder (41), lifting unit (42) and gear assembly (43), balance cylinder (41) set up in balance plate (2) top, balance cylinder (41) and the quantity phase-match of balance plate (2), lifting unit (42) set up in balance cylinder (41) and extend in balance plate (2), lifting unit (42) pass through gear assembly (43) transmission with inner tube (6) and are connected.

5. The apparatus for surveying and mapping underwater sludge thickness as claimed in claim 4, wherein: lifting unit (42) is including solid fixed cylinder (421), rotary drum (422) and clamping screw (423), gu fixed cylinder (421) is fixed to be set up inside balance cylinder (41), rotary drum (422) set up in gu fixed cylinder (421) bottom, just rotary drum (422) rotate with solid fixed cylinder (421) through the bearing and are connected, clamping screw (423) run through solid fixed cylinder (421) in proper order and extend rotary drum (422), rotary drum (422) and clamping screw (423) threaded connection, gu fixed cylinder (421) inner wall both sides all are provided with spacing groove (424) that slide and set up with clamping screw (423), clamping screw (423) bottom is provided with toper plug (425).

6. The apparatus for surveying and mapping underwater sludge thickness as claimed in claim 5, wherein: the gear assembly (43) comprises a first gear (431), a second gear (432) and a third gear (433), the first gear (431), the second gear (432) and the third gear (433) are meshed and connected, the first gear (431) is fixedly connected with the inner barrel (6), the second gear (432) is rotatably connected inside the balance plate (2), and the third gear (433) is fixedly connected with the rotary barrel (422).

7. The apparatus for surveying and mapping underwater sludge thickness as claimed in claim 1, wherein: lifting mechanism (9) are including winding drum (91), winding shaft (92) and connecting wire (93), winding shaft (92) rotate set up inside winding drum (91), winding drum (91) outer wall one side is provided with handle (94), handle (94) and winding shaft (92) fixed connection, connecting wire (93) set up between winding shaft (92) and sleeve (1) top, set up hole (95) of installation connecting wire (93) on winding drum (91).

8. The apparatus for surveying and mapping underwater sludge thickness as claimed in claim 1, wherein: the upper half part of the measuring rod (7) is columnar, the lower half part of the measuring rod (7) is conical, and a resistance sensor (11) is arranged in the lower half part of the measuring rod (7).